Optic zone - Study guides, Class notes & Summaries
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OTI NCLE Prep Course UPDATED Actual Exam Questions and CORRECT Answers
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OTI NCLE Prep Course UPDATED Actual 
Exam Questions and CORRECT Answers 
Optic Zone - CORRECT ANSWER- Central portion of a contact lens which contains the 
refractive power (generally corresponds to the corneal cap) 
Posterior Apecal Radius - CORRECT ANSWER- Spin-cast soft lenses. (Curvature of 
posterior surface changes with refractive power. Measured at apex of posterior surface) 
Steeper Base Curve - CORRECT ANSWER- As the Posterior radius of curvature is 
decreased the base curve becomes...
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NCLE Exam Prep Questions With Correct Answers
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optic zone - Answer the central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap 
 
posterior apecal radius - Answer this term is generally used in reference to spin-cast soft lenses. the curvature of the posterior surface of the lens changes with the refractive power. the radius of curvature is measured at the apex of the posterior surface. 
 
steeper base curve - Answer occurs when the posterior radius of curvature is decreased ...
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Certified Paraoptometric Test QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025 | 100% Verified | Graded.
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Certified Paraoptometric Test QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025 | 100% Verified | Graded. The person generally responsible for grinding or duplicating lenses is the ________. Correct 
Answer: Optician 
An instrument worn on the examiners head and used to view the back of the eye is call a/an 
_______. Correct Answer: Binocular indirect opthalmoscope 
Kerat (root word) Correct Answer: Cornea 
A test that does not require responses from the patient is called a/an __________ test. Correct...
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TRAFFIC SIGNAL TECHNICIAN (level 11) EXAM GUIDE 2023
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NEC - National Electric Code 
 
CEC - Canadian Electric Code 
 
NESC - National Electric Safety Code 
 
the NEC and CEC established the criteria for : - installation of electric conductors, electric equipment, signaling and Communications conductors, and fiber optic cables and raceways. 
 
traffic signal certification programss - work Zone safety specialist, traffic signal technician level 1, traffic signal design engineering technician level II , traffic signal technician level II traffic signa...
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NCLE Practice| 125 Questions| Correct Answers| Verified
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Which Curve is the Flattest? 
 
A) 7.5 mm 
B) 44.75 D 
C) 7.6 mm 
D) 45.50 D - ANSWER 7.6 mm 
 
Inflammation of the Eyelids is Called : 
 
A) Palpebritis 
B) Keratitis 
C) Conjunctivitis 
D) Blepharitis - ANSWER Blepharitis 
 
The Base Curve of a Rigid Lens 
was Ordered at 7.75 mm 
but Received at 7.85 mm. 
The Lens is _______ than ordered. 
 
A) 0.50 D Flatter 
B) 0.50 D Steeper 
C) 1.00 Flatter 
D) 1.00 Steeper - ANSWER 0.50 D Flatter 
 
The Fairness To Contact Lens Consumers Act of 2003 wa...
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NCLE Test Questions and Answers
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NCLE Test Questions and Answers 
Assessment of the quality of the peripheral curves (blends of a rigid contact lens) is 
achieved by the use of the- 
a. profile analyzer 
b. shadow graph 
c. keratometer 
d. burton light - Answer-a. profile analyzer 
Contact lens power should be specified in- 
a. back vertex power 
b. sphero-cylinder power 
c. power in situ 
d. posterier apical radius - Answer-a. back vertex power 
The slit-lamp illumination that gives an overall view of the cornea but limits det...
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NCLE Advanced Certification Exam Questions and Answers 2023
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1. The sagittal depth of a rigid gas permeable contact lens can be altered without 
changing the diameter by: 
A. Changing the power 
B. Changing the edge design 
C. Changing the radius of curvature of the anterior optical zone 
D. Changing the radius of curvature of the posterior optical zone 
- The answer is D. 
The posterior optical zone will directly affect the lens to cornea relationship of a 
rigid gas permeable lens. If the posterior optical zone is steepened, it will increase 
the sa...
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NCLE Advanced Certification Exam Questions and Answers Already Passed
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NCLE Advanced Certification Exam Questions and 
Answers Already Passed 
The answer is D. 
The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas 
permeable lens. If the posterior optical zone is steepened, it will increase the sagittal depth. If it 
is flattened, it will decrease the sagittal depth. Changing the power, which is accomplished by 
changing the anterior optical zone, will not affect the sagittal depth of the lens, nor will changing 
its edge d...
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NCLE Exam Prep Questions and Answers Latest Update
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NCLE Exam Prep Questions and Answers Latest Update 
 
optic zone -Answer the central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap 
 
posterior apecal radius -Answer this term is generally used in reference to spin-cast soft lenses. the curvature of the posterior surface of the lens changes with the refractive power. the radius of curvature is measured at the apex of the posterior surface. 
 
steeper base curve -Answer occurs w...
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NCLE Advanced Certification Exam Questions With Correct Answers Latest 2024 (GRADED)
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NCLE Advanced Certification Exam Questions With Correct Answers Latest 2024 (GRADED) The posterior optical zone will directly affect the lens to cornea relationship of a rigid 
gas permeable lens. If the posterior optical zone is steepened, it will increase the 
sagittal depth. If it is flattened, it will decrease the sagittal depth. Changing the 
power, which is accomplished by changing the anterior optical zone, will not affect 
the sagittal depth of the lens, nor will changing its edge design...
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